[haiku-commits] Re: r38978 - haiku/trunk/src/add-ons/media/plugins/ffmpeg
- From: Philippe Houdoin <philippe.houdoin@xxxxxxxxx>
- To: haiku-commits@xxxxxxxxxxxxx
- Date: Fri, 15 Oct 2010 17:57:52 +0200
> Enable DV format (muxer) and DV encoder. It works, but only for
> certain video sizes (720x576 for example) and with 48 kHz raw
> audio.
Which is normal.
IIRC, DV baseline video frame resolution is 720x576i@25 (PAL) or
720x480i@30 (NTSC).
For audio, it's either 2x16bits @ 48 kHz (stéréo) or 4 x 12 bits @ 32
kHz, but this later format is less frequently supported.
Only *pro* or semi-HD variants of DV format supports more formats. And
synchronized audio track !
> Clockwerk actually uses a mechanism which worked on BeOS
> to check if an encoder would accept a certain media_format, but
> this does not yet work on Haiku and thus the format is available
> even when trying to render later will fail.
Sounds like a bug, then.
Anyway, thanks for bridging the gap between the Firewire DV media
add-on and the encoding side.
I'll find back my old DV cam tonigh, I bet ;-)
Philippe.
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